Kuipers BM, Kollen BJ, Bots PC et al. Knee 2010;17:48–52.
This study demonstrates that age <60 years is associated with an increased risk of early revision after unicompartmental knee arthroplasty. Obesity and patellofemoral joint arthritis were not found to be associated with this risk.
The variability of 10-year survival rates for unicompartmental knee arthroplasty (UKA) has led to strict inclusion criteria to ensure optimal survival. The roles of obesity, age, and patellofemoral joint arthritis remain controversial. In this retrospective study of 437 patients undergoing unilateral UKA, the authors sought to evaluate the prognostic value of preoperative patellofemoral joint (PFJ) arthritis, body mass index (BMI), and age.